Plastic bottle air tightness detection device

Abstract

The utility model discloses a plastic bottle air tightness detection device which comprises a machine body, a control system installed on the machine body, and a detection mechanism installed on the machine body. The detection mechanism comprises a conveyor belt, a first limiting guide rail, a second limiting guide rail, a supporting frame, a supporting plate, an L-shaped supporting plate, a limiting plate, an air pump, a first air cylinder, a second air cylinder, an inflation head, a concave support, a first signal detector, a movable assembly, a flow dividing assembly and a labeling assembly. The problems that in the prior art, a worker needs to hold the plastic bottle for a period of time after placing the plastic bottle into liquid so as to conveniently observe the approximate position where the plastic bottle goes wrong, the worker still needs to hold the plastic bottle for a period of time to ensure that the plastic bottle does not move, the labor efficiency of the worker is limited to a certain extent, and the workload of the worker is large are solved.

Description

Technical Field

[0001] This utility model relates to the field of container airtightness testing technology, and in particular to a plastic bottle airtightness testing device. Background Technology

[0002] Plastic bottles have advantages such as light weight, good barrier properties, high transparency, high strength, low cost, acid and alkali resistance, and high safety in use. They are mainly used as disposable plastic packaging containers for liquids or solids such as beverages, food, pickles, honey, dried fruits, edible oils, and agricultural and veterinary drugs.

[0003] For plastic bottles, airtightness is particularly important. Most plastic bottles are made through blow molding, which can lead to some bottles having insufficient airtightness and failing to meet usage standards. Current airtightness testing methods involve immersing the plastic bottle in a liquid to observe the approximate location of the problem. However, after placing the bottle in the liquid, workers still need to support it for a period of time to ensure it doesn't shift. This method limits the workers' efficiency and increases their workload. Utility Model Content

[0004] This application provides a plastic bottle airtightness testing device, which can solve the problem that existing plastic bottle airtightness testing requires manual immersion of the plastic bottle in liquid and holding this action for a period of time to observe whether the plastic bottle airtightness meets the standard, resulting in high work efficiency and a large workload for workers.

[0005] This application provides a plastic bottle airtightness testing device, including a body, a control system mounted on the body, and a testing mechanism mounted on the body. The testing mechanism includes a conveyor belt, a first limiting guide rail, a second limiting guide rail, a support frame, a support plate, an L-shaped support plate, a limiting plate, an air pump, a first cylinder, a second cylinder, an inflation head, an air pressure detector, a pressure block, a concave bracket, a first signal detector, a movable component, a diversion component, and a labeling component. The conveyor belt is mounted on the body, and several support frames for fixing the first and second limiting guide rails are mounted on both sides of the conveyor belt. The first and second limiting guide rails are located above the conveyor belt. The movable component is mounted on the body, and the L-shaped support plate is mounted on... The cylinder is mounted on an L-shaped support plate and connected to the inflator head. An inflation hole is provided inside the inflator head. A connector is installed on one side of the inflator head. A pressure detector is installed inside the inflator head. A support plate is mounted on the conveyor belt. A signal detector is mounted on the support plate. A limit plate is mounted on the support plate. The cylinder slides within the limit plate and is fixed to the limit plate with bolts. A pressure block is mounted on the cylinder. A concave bracket is connected to the cylinder. A flow divider is connected to the concave bracket. A labeling component is located on one side of the support plate. A feeding plate is mounted on one side of the labeling component. The air pump is mounted on the machine body.

[0006] Furthermore, the support frame includes mounting block one, mounting block two, mounting block three, movable rod one, and movable rod two. Mounting block one is fixedly connected to the conveyor belt, movable rod one slides within mounting block one, and movable rod one and mounting block one are fixed together by a fixing knob one. Mounting block two is fixedly connected to movable rod one, movable rod two slides within mounting block two, and movable rod two and mounting block two are fixed together by a fixing knob two. Mounting block three is fixedly connected to movable rod two, and each side of mounting block three is fixedly connected to a corresponding limiting guide rail one or limiting guide rail two.

[0007] Furthermore, the movable components include a threaded rod, a positioning rod, a slider one, a slider two, a slider three, a hand crank, and a guide rail. The threaded rod is rotatably connected to the machine body, the hand crank is fixedly connected to the threaded rod, positioning rods are provided on both sides of the threaded rod, the positioning rods are fixedly connected to the machine body, slider one slides on the positioning rod, slider two cooperates with the threaded rod, the guide rail is fixedly connected to slider one and slider two, slider three is slidably connected to the guide rail, the L-shaped support plate is fixedly connected to slider three, a fastening handle one is installed on one side of slider two, and a fastening handle two is installed on slider three.

[0008] Furthermore, the support plate has a waist-shaped groove one, the conveyor belt has a waist-shaped groove two, fastening bolts are provided in the waist-shaped groove one and the waist-shaped groove two, and a fastening nut is provided on one side of the support plate. The support plate and the conveyor belt are fixed together by fastening bolts and fastening nuts.

[0009] Furthermore, the diversion assembly includes a third cylinder, a push plate, and a diversion block. The third cylinder is fixedly connected to the concave bracket, the push plate is fixedly connected to the third cylinder, and the diversion block is fixedly connected to the push plate.

[0010] Furthermore, the labeling assembly includes a spray gun, a connecting pipe, a second signal detector, a support block, and a fixing plate. The support block is fixedly connected to the conveyor belt, and the fixing plate is fixedly connected to the support block. The spray gun is fixedly connected to the fixing plate, the connecting pipe is fixedly connected to the spray gun, and the second signal detector is fixedly connected to the fixing plate.

[0011] In summary, the plastic bottle airtightness testing device of this application, compared with traditional manual testing, achieves automatic transmission by setting a conveyor belt on the machine body for transporting plastic bottles, and a diversion component is set on one side of the conveyor belt to ensure that one plastic bottle is accurately tested each time. At the same time, the airtightness of the plastic bottle is tested by inflating the air head through a cylinder. It has the beneficial effect of increasing the production efficiency of the factory and reducing the workload of the workers. Attached Figure Description

[0012] Figure 1 A perspective view of the utility model;

[0013] Figure 2 This is the front view of the utility model;

[0014] Figure 3 for Figure 2 Sectional view at point AA along the middle;

[0015] Figure 4 This is a top view of the utility model.

[0016] Figure 5 for Figure 4 A magnified view of a section at point C;

[0017] Figure 6 This is a schematic diagram of the inflation head structure;

[0018] Figure 7 This is a cross-sectional view of the inflation head structure.

[0019] Reference numerals: 1. Machine body; 2. Detection device; 201. Conveyor belt; 202. Limiting guide rail one; 203. Limiting guide rail two; 204. Support frame; 205. Support plate; 206. L-shaped support plate; 207. Limiting plate; 208. Air pump; 209. Cylinder one; 210. Cylinder two; 211. Inflation head; 212. Concave bracket; 213. Signal detector one; 214. Moving component; 215. Diverting component; 216. Labeling component; 3. Inflation through hole; 4. Connector; 5. Feeding plate 6. Mounting Block 1; 7. Mounting Block 2; 8. Mounting Block 3; 9. Movable Rod 1; 10. Movable Rod 2; 11. Fixed Knob 1; 12. Fixed Knob 2; 13. Threaded Rod; 14. Positioning Rod; 15. Slider 1; 16. Slider 2; 17. Slider 3; 18. Hand Crank; 19. Guide Rail; 20. Waist-shaped Groove 1; 21. Waist-shaped Groove 2; 23. Cylinder 3; 24. Push Plate; 25. Diverter Block; 26. Spray Gun; 27. Connecting Pipe; 28. Signal Detector 2; 29. ​​Support Block; 30. Fixing Plate. Detailed Implementation

[0020] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0021] like Figures 1 to 7 As shown, a plastic bottle airtightness testing device includes a body 1, a control system for controlling the entire device is installed on the body 1, and a testing device 2 for testing the airtightness of plastic bottles is installed on the body 1.

[0022] The detection device 2 includes a conveyor belt 201, a first limiting guide rail 202, a second limiting guide rail 203, a support frame 204, a support plate 205, an L-shaped support plate 206, a limiting plate 207, an air pump 208, a first cylinder 209, a second cylinder 210, an inflation head 211, an air pressure detector, a pressure block, a concave bracket 212, a first signal detector 213, a moving component 214, a diversion component 215, and a labeling component 216. A conveyor belt 201 for transporting plastic bottles is installed on the machine body 1. The first limiting guide rail 202 and the second limiting guide rail 203 are provided on the conveyor belt 201 to restrict the movement of the plastic bottles. Several... A support frame 204 is installed at the front end of the conveyor belt 201 to support the first limiting guide rail 202, and at the rear end of the conveyor belt 201 to support the second limiting guide rail 203. A support plate 205 is provided on the right side of the first limiting guide rail, and a support plate 205 is provided on each side of the conveyor belt 201. The support plates 205 are installed on the conveyor belt 201, and a limiting plate 207 is fixedly connected to the top of the support plate 205. The second cylinder 210 slides within the limiting plate 207. The second cylinder 210 and the limiting plate 207 are fixed together by bolts. The position of the second cylinder 210 can be adjusted by loosening the bolts. A pressure block is fixedly connected to the output shaft. A diversion component 215 is provided on one side of the support plate 205 on the side of the limit guide rail 202. One end of the concave bracket 212 is fixedly connected to the cylinder 210, and the other end of the concave bracket 212 is fixedly connected to the diversion component 215. A labeling component 216 is provided on the other side of the support plate 205. The labeling component 216 is installed on the conveyor belt 201. A movable component 214 is installed on the machine body 1. An L-shaped support plate 206 is fixedly connected to the movable component 214. A cylinder 209 is fixedly connected to the L-shaped support plate 206. An inflation head 211 is provided below the L-shaped support plate 206. The output shaft of cylinder 209 is fixedly connected to the inflation head 211. A pressure detector for detecting the pressure inside the bottle is installed inside the inflation head 211. Two inflation holes 3 are opened on the inflation head 211. A connector 4 is fixedly connected to one side of the inflation head 211. The connector 4 is used to connect an air pipe to supply air to the inflation head 211. The connector is the same as the inflation hole 3. A signal detector 213 is fixedly connected to the support plate 205. The signal detector 213 is located between the limit block and the conveyor belt 201. An air pump 208 is installed on the machine body 1. The air pump 208 is located below the conveyor belt 201 and is used to supply air to the entire equipment.

[0023] Furthermore, one end of the first limiting guide rail 202 is flush with the second limiting guide rail 203, and the other end of the first limiting guide rail 202 is located on the left side of the support plate 205. One end of the second limiting guide rail 203 is flush with the first limiting guide rail 202, and the other end of the second limiting guide rail 203 is longer than the conveyor belt 201. The unloading plate 5 is installed at this end.

[0024] The support frame 204 includes mounting block 6, mounting block 7, mounting block 8, movable rod 9, and movable rod 10. Mounting block 6 is fixedly connected to the conveyor belt 201. Movable rod 9 slides on mounting block 6. Movable rod 9 and mounting block 6 are connected by a fixing knob 11. The position of movable rod 9 can be adjusted by loosening the fixing knob 11. Movable rod 9 is in a vertical state. Mounting block 7 is fixedly connected to the top of movable rod 9. Movable rod 10 slides on mounting block 7. Movable rod 10 and mounting block 7 are connected by a fixing knob 22. The position of movable rod 10 can be adjusted by loosening the fixing knob 22. Movable rod 10 is in a horizontal state. Mounting block 8 is fixedly connected to movable rod 10. Mounting block 8 is fixedly connected to the corresponding limiting guide rail 202 or limiting guide rail 203.

[0025] The active component 214 includes a threaded rod 13, a positioning rod 14, a slider 15, a slider 2 16, a slider 3 17, a hand crank 18, and a guide rail 19. The threaded rod 13 is rotatably connected to the machine body 1. A positioning rod 14 is provided on each side of the threaded rod 13, and the positioning rod 14 is fixedly connected to the machine body 1. Slider 15 slides on the positioning rod 14. A fastening handle 1 is installed on one side of slider 15. Slider 2 16 cooperates with the threaded rod 13. The front ends of slider 15 and slider 2 16 are on the same horizontal plane. The two ends of the guide rail 19 are fixedly connected to slider 15, and the middle of the guide rail 19 is fixedly connected to slider 2 16. Slider 3 17 is slidably connected to the guide rail 19. A second fastening handle is installed on one side. The position of slider 15 can be adjusted by loosening the first fastening handle. The second fastening handle can control the position of slider 3 17. A hand crank 18 is fixedly connected to the bottom end of the threaded rod 13. Loosening the first fastening handle and cranking the hand crank 18 can adjust the height of the guide rail 19, thereby adjusting the longitudinal position of the inflation head 211. The lateral position of the inflation head 211 can also be adjusted by loosening the second fastening handle. Since the inflation head 211 defaults to two inflation holes 3 and defaults to detecting plastic bottles with two openings, the detection of single-opening plastic bottles can be selected through the control system. Therefore, the position of the inflation head 211 can be adjusted through the movable component 214 so that one inflation hole 3 is aligned with the signal detector 213.

[0026] Furthermore, a waist-shaped groove 20 is provided on the support plate 205, and a waist-shaped groove 21 is provided on the conveyor belt 201. The waist-shaped groove 20 is longitudinally opened, and the waist-shaped groove 21 is transversely opened. The fastening bolt can slide within the waist-shaped groove 20 and the waist-shaped groove 21. A fastening nut is provided on one side of the support plate 205. The support plate 205 and the conveyor belt 201 are fixed together by the fastening bolt and the fastening nut. The waist-shaped groove 20 and the waist-shaped groove 21 are used to cooperate with the movement of the movable component 214.

[0027] The diversion assembly 215 includes a cylinder 23, a push plate 24, and a diversion block 25. The cylinder 23 is fixedly connected to the concave bracket 212. The push plate 24 is fixedly connected to the output shaft of the cylinder 23. The diversion block 25 is fixedly connected to the push plate 24. A protruding triangle is provided on one end of the diversion block 25. When the signal detector 213 detects the plastic bottle to be tested, it will activate the cylinder 23 to push out the diversion block 25. The triangle on the diversion block 25 will intercept the remaining plastic bottles to be tested.

[0028] The labeling component 216 includes a spray gun 26, a connecting pipe 27, a signal detector 28, a support block 29, and a fixing plate 30. The support block 29 is fixedly connected to the conveyor belt 201. The fixing plate 30 is fixedly connected to the upper surface of the support block 29. The spray gun 26 is fixedly connected to the fixing plate 30. One end of the connecting pipe 27 is fixedly connected to the spray gun 26, and the other end of the connecting pipe 27 is used to connect to the paint bucket. The spray gun 26 is higher than the surface of the conveyor belt. The signal detector 28 is fixedly connected between the spray gun 26 and the conveyor belt 201. When a plastic bottle with intact airtightness passes through the signal detector 28, it will be marked by the spray gun 26.

[0029] Working principle of the utility model: The conveyor belt 201 transports the plastic bottle to be tested to the position of the signal detector 213. When the signal detector 213 detects the plastic bottle, the cylinders 210 on both sides of the conveyor belt 201 start to press out the pressure block and continuously squeeze the plastic bottle. At the same time as the cylinders 210 start, the cylinder 3 23 pushes out the diverting block 25 to separate the plastic bottle being tested from the plastic bottle to be tested. The cylinder 209 presses down the inflation head 211 to inflate the bottle. The air pressure detector in the inflation head 211 senses the air pressure inside the bottle. When the air pressure inside the bottle does not reach the threshold, the air tightness of the plastic bottle is insufficient.

Claims

1. A device for detecting the airtightness of plastic bottles, comprising a body (1) and a control system installed on the body (1), characterized in that, The machine body (1) is equipped with a detection device (2), which includes a conveyor belt (201), a first limiting guide rail (202), a second limiting guide rail (203), a support frame (204), a support plate (205), an L-shaped support plate (206), a limiting plate (207), an air pump (208), a first cylinder (209), a second cylinder (210), an inflation head (211), an air pressure detector, a pressure block, a concave bracket (212), a first signal detector (213), a moving component (214), and a diversion component. (215) and labeling component (216), the conveyor belt (201) is mounted on the machine body (1), and several support frames (204) for fixing the first limiting guide rail (202) and the second limiting guide rail (203) are mounted on both sides of the conveyor belt (201). The first limiting guide rail (202) and the second limiting guide rail (203) are located above the conveyor belt (201). The movable component (214) is mounted on the machine body (1), and the L-shaped support plate (206) is mounted on the movable component (214). The cylinder one ( 209) is installed on an L-shaped support plate (206). The inflation head (211) is connected to cylinder one (209). An inflation through hole (3) is opened in the inflation head (211). A connector (4) is installed on one side of the inflation head (211). A pressure detector is installed in the inflation head (211). A support plate (205) is installed on the conveyor belt (201). The signal detector one (213) is installed on the support plate (205). A limit plate (207) is installed on the support plate (205). The second cylinder (210) slides within the limiting plate (207), and the second cylinder (210) is fixed to the limiting plate (207) by bolts. A pressure block is installed on the second cylinder (210). The concave bracket (212) is connected to the second cylinder (210). The flow divider (215) is connected to the concave bracket (212). The labeling component (216) is located on one side of the support plate (205). A feeding plate (5) is installed on one side of the labeling component (216). The air pump (208) is installed on the machine body (1).

2. The plastic bottle airtightness testing device according to claim 1, characterized in that, The support frame (204) includes mounting block one (6), mounting block two (7), mounting block three (8), movable rod one (9), and movable rod two (10). Mounting block one (6) is fixedly connected to the conveyor belt (201). Movable rod one (9) slides within mounting block one (6). Movable rod one (9) and mounting block one (6) are fixed together by a fixing knob one (11). Mounting block two (7) is fixedly connected to movable rod one (9). Movable rod two (10) slides within mounting block two (7). Movable rod two (10) and mounting block two (7) are fixed together by a fixing knob two (12). Mounting block three (8) is fixedly connected to movable rod two (10). Mounting block three (8) on each side is fixedly connected to the corresponding limiting guide rail one (202) or limiting guide rail two (203).

3. The plastic bottle airtightness testing device according to claim 1, characterized in that, The movable component (214) includes a threaded rod (13), a positioning rod (14), a slider one (15), a slider two (16), a slider three (17), a hand crank (18), and a guide rail (19). The threaded rod (13) is rotatably connected to the machine body (1), and the hand crank (18) is fixedly connected to the threaded rod (13). Positioning rods (14) are provided on both sides of the threaded rod (13), and the positioning rods (14) are fixedly connected to the machine body (1). Slider 1 (15) slides on positioning rod (14), slider 2 (16) cooperates with threaded rod (13), guide rail (19) is fixedly connected to slider 1 (15) and slider 2 (16), slider 3 (17) is slidably connected to guide rail (19), L-shaped support plate (206) is fixedly connected to slider 3 (17), fastening handle 1 is installed on one side of slider 2 (16), and fastening handle 2 is installed on slider 3 (17).

4. The plastic bottle airtightness testing device according to claim 3, characterized in that, The support plate (205) has a waist-shaped groove 1 (20), and the conveyor belt (201) has a waist-shaped groove 2. Fastening bolts are provided in the waist-shaped groove 1 (20) and the waist-shaped groove 2 (21). A fastening nut is provided on one side of the support plate (205). The support plate (205) and the conveyor belt (201) are fixed together by fastening bolts and fastening nuts.

5. The airtightness testing device for plastic bottles according to claim 4, characterized in that, The diversion assembly (215) includes a cylinder (23), a push plate (24), and a diversion block (25). The cylinder (23) is fixedly connected to the concave bracket (212), the push plate (24) is fixedly connected to the cylinder (23), and the diversion block (25) is fixedly connected to the push plate (24).

6. The airtightness testing device for plastic bottles according to claim 1, characterized in that, The labeling component (216) includes a spray gun (26), a connecting pipe (27), a second signal detector (28), a support block (29), and a fixing plate (30). The support block (29) is fixedly connected to the conveyor belt (201), and the fixing plate (30) is fixedly connected to the support block (29). The spray gun (26) is fixedly connected to the fixing plate (30), the connecting pipe (27) is fixedly connected to the spray gun (26), and the second signal detector (28) is fixedly connected to the fixing plate (30).

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